OS X V10.4 :: Imac Keeps Crashing Then Won't Reboot

May 22, 2012

My imac is 10.4 tiger which over the years is now updated to version 10.5.8. It regularly crashes and is getting worse - at least twice a day then i have to turn it off with the power button. When i go to reboot a folder with a question mark appears on the screen. I usually then have to turn it back off and wait several hours for the mac to reboot again... 

iMac, Mac OS X (10.5.8)

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MacBook :: Pro 15" Keeps Crashing Forces Reboot

Jul 2, 2012

I've had this macbook pro for almost 4 years now and recently had a hard drive fail. We went and got it replaced, and reinstalled all the OS Snowleopard stuff along with the adobe creative suite, microsoft office 2008, and diablo 3 (fun). Before the last hard drive failed the computer was randomly freezing, crashing, or forcing me to reboot with the power button.


Info:MacBookPro, Mac OS X (10.6.8) 142.6.0

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IMac :: How To Delete A User From IMac After Reboot, Using Os X Install Dvd To Reset Keychain

May 25, 2010

I forgot my admin password on my iMac recently and so i used the reboot with OS X snow leopard install disc to reset the keychain, but now on my login screen, it used to be just my account name, there is one called "Other" so i went into accounts in system preferences and tried to delete it but it isnt there?is really annoying me p.s. the "other account" isnt actually an account it says "Other" and when you click on it asks for your username and password...so i type in the admin accounts name and password (admin account is the only one on this computer), and it just opens up my admin account.

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IMac :: Flashing World Map When Reboot?

Feb 25, 2009

When I start my imac it has started flashing a world map where the normal apple logo is for up to 3 minutes then it starts its normal restart.

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OS X :: IMac 10.6.3 Takes 15 Minutes To Reboot?

Apr 8, 2010

For about a week now, every time I boot my iMac mid-2007 20" running 10.6.3 I get the following problems

-Booting takes about 15 minutes of seeing the apple logo, and a bar that fills slowly under it...

-When it finally boots all the dock icons are reset to the ones you get with a brand new mac, spaces and expose is reset as well.

-Spotlight reindexes Macintosh HD.

-Adium loses all contact icons

-Mouse loses all it's custom settings.

-Login items are gone, I have tried not to re-enable those.

-Shut down takes about 10 minutes as well, while I see only the blue screen of shut down...

It seems that it is losing more and more settings every day. Today I had to turn on time machine again, although it was on before shut down...

Is this like losing an application support folder or something like that?

Applications do not seem intact as well.

Safari loses all web screenshots from cover flow iTunes reupdates the library etc....

What's up witn all these?

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IMac PPC :: G5 Stuck On A Reboot Loop

Jun 4, 2012

I received an iMac G5 from this old couple, they were going to throw it out, but all it needed was a power supply which I bought and replaced. It's been about 9 months and everything worked great, no problems whatsoever. 

Three days ago, I shutdown the computer and when I booted the next day, it would only reach the Apple logo and the spining wheel, the fans would blast loud and then it would shut down and restart again, repeating the same thing over and over.  I cannot start it under Safe Mode nor it recognizes the CD when booting. 

iMac G5
1GB Ram
no Isight

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IMac PPC :: No Admin Password - Any Way To Reboot G5 Without CD?

Jun 30, 2012

A friend give me a Power Mac G5. I don't have the admin password. What can I do? Is anyway how i can reboot the computer without CD?

Mac OS X (10.4.11)

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IMac :: Picture Pops Up Every Time On Reboot?

Dec 18, 2010

How do I get rid of it from reoccurring?

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IMac :: Screen Brightness Adjusts Itself After Reboot?

Aug 25, 2009

After every reboot, the brightness of my iMac's screen changes to 100% brightness, which is slightly annoying. Does anyone know why this happens? By the way, I'd say it does it since 10.5.8.

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IMac :: Clock Keeps Resetting Time On Every Reboot

May 19, 2010

My iMac 27" Clock/Time keeps reseting itself everytime I reboot it. I've tried to set it manually, but it doesn't fix the problem. It's really annoying that I have to set it everytime I turn it on.

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Software :: IMac Shuts Off At Random And Not Reboot

Jun 28, 2008

I have a G5 iMac, 1G ram, with three external HD, a MIDI keyboard, and an all-in-one Canon print/copy/scan, running Leopard. Lately, my iMac has been turning off seemingly at random, like someone has hit the power strip (although other things plugged into the strip stay on). Sometimes it will reboot when I turn it back on, sometimes not. When it doesn't, it will get partway through startup, then turn off again. There is no apparent pattern to the point during startup where this happens, it's different every time. Sometimes, it barely spins the HD before going dark again.

I took off the back and checked the power supply LED. It says the power supply is OK. I rebooted via the internal power button, and everything was fine for a couple of days. I set the preferences to "reboot after power failure" so it will reboot when I'm at work. I can go through the Time Machine backup list and see how many times it shut down and rebooted during the day (TM backs up once per hour, so when there is a significant length of time between backups, I know it shut down for awhile). The only recent addition is the installation of MoneyWell software, but this app isn't always running when the comp goes black.

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Software :: IMac Starts Itself With Reboot Screen

Jan 9, 2009

In the last three days my iMac desktop has begun starting itself up. There is an audible beeping (three or four beeps) and the on/off indicator light blinks rapidly. When the screen comes up there is no desktop but a gray background with reboot instructions. When I type the reboot words "mac-reboot" the desktop comes back.

Under Logs in the system profiler I see the following message:
CGXDDisableUpdate:Updates disabled by connection 0x66-3 for over 1.000000 seconds
CGXBlindSurface returns-536870210
The computer is rather old, is running OS X 10.2.8 and has never done anything like this before.

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Software :: IMac Freezes On Start Up - Reboot Failed

Jun 5, 2009

I have an iMac G5 OS 10. that froze up while surfing the net using Firefox. I shut it down and tried to reboot. It chimes and comes up with the gray screen with the Apple logo, but will not proceed beyond that. The fan kicks in and will not proceed.

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OS X V10.7 Lion :: No Desktop / Login Or Recovery On IMac After Reboot

May 9, 2012

I've just done an install of lion from snow leopard on my IMac. Now when I reboot, I just get the grey brushed aluminum background and apple logo slightly higher than centre and a black arrow cursor. No desktop, no login options, nothing else whatsoever appears on the screen.I've tried resetting the pram, and to access the lion recovery mode (command r on boot up) but this does not even appear. All I can get is the same empty screen and arrow cursor.


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OS X V10.7 Lion :: After Upgrade IMac Takes Hours To Reboot?

May 15, 2012

After upgrade IMac takes hours to reboot

iMac (27-inch Mid 2011)

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OS X Yosemite :: IMac Slow And Reboot Takes 5 Minutes

Dec 8, 2014

I updated my late 2012 27" iMac from the latest Mavericks to Yosemite.  now it takes 30+ second between mouse click and action.  For example, if I click on iTunes it takes 30 seconds to a minute before iTunes opens.  I get the pinwheel while waiting.  I rebooted and the startup hangs on the progress bar for several minutes, then black screen for several minutes, then eventually gets to desktop. 

iMac, OS X Mavericks (10.9)

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IMac (Intel) :: When Reboot After Update All Pictures Are Lost

Jun 4, 2014

i have recently updated and when rebooted lost all pics

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Hardware :: Drive Disconnect Randomly - Can't Mount Unless Reboot Imac

Jan 29, 2009

I purchased a Q-Drive Q 1TB in Dec for my 24" iMac, purchased it at a Apple Store. I was connected with 800firewire cable, all seemed to be working ok, time machine etc. But in the past month the drive has become a nightmare, it will just disconnect at random. At that point i cannot get it to mount, unless I reboot my iMac. I have tried to connect with 400firewire and usb2, but the same problem persists. Needless to say I am somewhat annoyed, it was not cheap. Anyone have any advice on what I should do, I'm scared to go to G-Tech for support as what I could find appears to be a nightmare. Would I be able to return this to the Apple store that I bought it from?

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IMac :: Unable To Save Settings / Screen Brightness Goes Up At Reboot

Jul 23, 2010

All of a sudden, every time I reboot, my screen's brightness is all the way up. So, I go to 'Preferences' and bring it down to only happen again the next time I reboot. Not a terrible problem, I hope, but not sure why the settings of this doesn't remain as I left it last. Perhaps I have picked up something OR I have a fault which could get worse?Anyone seen anything like this?

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OS X Mavericks :: Killed Runaway Distnoted Process Now IMac Won't Reboot

Sep 8, 2014

Problem is pretty much summarized in the topic line. Had a distnoted process that was eating up all my CPU. Killed it in Activity Monitor, and the computer hung. Forced a restart, and it won't...restart. Tried a safe reboot, resetting the NRAM...no joy.  

2012 (I believe) iMac running the latest version of OS X Mavericks. 

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OS X Mavericks :: How To Create Space On Recovery Disk To Reboot IMac

Dec 11, 2014

My iMac has the grey screen upon turning on.  When I attempt to restore OS X mavericks, there is not enough space on the recovery drive.

When I try to erase the disk, the error message says it is unable to erase.

iMac (27-inch Late 2009)

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OS X V10.7 Lion :: Can Reboot My New IMac Running 10.7 Into Snow Leopard 10.6.8 From An External Hard Drive

Mar 12, 2012

I have installed my hard drive from a previous but terminally I'll iMac that was running Snow Leopard into a Sata to USB  enclosure. This is displaying on the desktop of my new iMac running Lion as an external Hard drive,also system preferences sees it as a start up source.My question is , is it safe to restart into Snow leopard without causing a kernel panic and if it does boot will it be fast enough to use as it as a USB drive.

iMac, Mac OS X (10.7.2)

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IMac (Intel) :: Running OS X Mavericks (10.9.4) - Can Reboot Using Snow Leopard Install Disc?

Aug 23, 2014

Can I reboot my iMac running ox 10.9.4 using my Snow Leopard install disc?

iMac, OS X Mavericks (10.9.4)

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OS X :: All Browsers Crashing MAC 10.5.8 IMAC?

Dec 22, 2009

All three of my browsers (Opera 10.10, Firefox 3.5.6, Safari 4.0.4) crash repeatedly when accessing www.nytimes.com (most common site). I am running OSX 10.5.8 on an iMAC G4 with 768MB RAM. I ran Onyx and repaired the permissions but to no avail. Other websites have failed but the nytimes site causes instantaneous failure.

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PowerPC :: IMac G4 Keeps Crashing?

Jun 6, 2007

I have an iMac G4 and it keeps crashing. I've zapped PRAM, bought more RAM, re-formated HDD, installed Mac OS X over and over, I don't know what else to do. Even if I boot it up and let it run, it will eventually crash, but at random times. If I re-boot right after it crashes, it crashes again, but if I wait, it doesn't.

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IMac :: Crashing While In Standby?

Oct 19, 2009

Randomly, when in stanby, when I click mouse to wake my iMac (2.66 Ghz 20" '09 model), the screen remains black and nothing happens.

I have to turn it off with the power button and then on again.

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PowerPC :: IMac G5 PPC Crashing - How To Fix It

Aug 2, 2010

I've got a 2005 iMac G5 PowerPC 1.8GHz running Leopard. It's been running absolutely fine since I had it (upgraded to Leopard for at least 18 months) but randomly a week or two ago it's started crashing.

Sometimes two or three times in a row, then it's been 2-3 days without problem.

The display starts flickering, usually the mouse pointer can still be moved but after 10-20 seconds or so it will just crash and I have to restart by holding the power button down.

There's nothing in the crash log. I've run the hardware test and checked the memory and everything is looking fine. I've completely reinstalled Leopard and also cleaned out the fan in case it was overheating that was causing this.

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IMac PPC :: G5 Crashing While Using Firefox?

Apr 4, 2012

For the last couple of weeks, while using various programs (Firefox, Word for Mac, etc) my computer (or the individual program) has crashed. Also, After sleep, the G5 would not awake even if I pressed the power button. I changed the Energy Saving schedule to 15 minutes for both settings. Before it was an hour. We had to actually shut of the power supply and turn it on again. Then it started up.

iPhone 3GS, iOS 5, Main syncing computer is MacBook

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IMAC Finder Keeps Crashing

Jun 12, 2012

I am having trouble with crashes. It seems to be finder. I have Lion 10.7.4 I have looked on the net for answers and they all say to delete the finder prefs. I don't see any in library/preferences? Where are they? Sometimes when in either photoshop or Indesign and I try to save the folder is blank, when I know there are files in it.

iMac, Mac OS X (10.7.4)

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Software :: Browsers Crashing On IMac?

Dec 26, 2008

For some reason, both Safari and FoxFire are crashing on my IMac. I am using the smaller EMac keyboard on that machine and last night, in an attempt to get the DVD drive open some of the F# buttons were pushed. This resulted in a hard boot from the power switch. Now both browsers blow up as soon as you try to do anything with them. I verified and repaired permission both from the HD and from the system disk and verified and repaired the disk as well but the problem still exists. I also unplugged and rebooted the ethernet router, but none of these steps have made any difference. What can I do now to fix teh situation?

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